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Introduction to Dental Materials E-Book

Introduction to Dental Materials E-Book

Richard Van Noort | Michele Barbour

(2007)

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Book Details

Abstract

This textbook considers the properties and applications of dental materials and includes all the necessary basic science and clinical applications. Virtually all procedures in restorative dentistry make use of a dental material. Among these materials are metals, ceramics, polymers and composites, and their uses include filling of cavities and root canals and the making of impressions or replicas of teeth and tissues prior to the construction of crowns, bridges and dentures. All dental students need to acquire a working knowledge of both the properties and applications of the materials which they will use.

  • Comprehensive and readable coverage of the composition, handling, and application of the materials used by dentists in clinical practice.
  • The necessary basic science is presented in a clear and understandable manner.
  • Final section covers what the dentist needs to know about the laboratory materials used by technicians in the construction of dental prostheses - will help the reader to communicate effectively with the dental technician.
  • Aims to give the reader the understanding of dental materials necessary to assess the potential of the many new materials which will appear during their clinical practice.
  • "Clinical Significance" boxes highlight points of importance for day-to-day dental practice.
  • Updating of section on polyacid modified resin composites.
  • Addition of section on retrograde root filling materials (MTA).
  • Expansion of section on hydrophilic addition cured silicones.
  • Revision of introduction to ceramics to consider the three modes of application of ceramics.
  • More on CAD-CAM technology, especially aluminia and zirconia core systems for crowns and bridges.

Table of Contents

Section Title Page Action Price
Front Cover Cover
Introduction to Dental Materials iii
Copyright Page iv
CONTENTS v
Preface vii
SECTION ONE: BASIC SCIENCE FOR DENTAL MATERIALS 1
Chapter 1.1. Biomaterials, biocompatibility and biomechanics 3
BIOMATERIALS 3
BIOCOMPATIBILITY 3
BIOMECHANICS 4
SUMMARY 5
FURTHER READING 5
Chapter 1.2. A historical perspective 6
INTRODUCTION 6
ETRUSCANS (1000–600 BC) 6
THE DARK AGES 6
THE FIRST DENTURES (18TH CENTURY) 7
THE VICTORIAN AGE 7
TOOTH CONSERVATION 8
CROWNS AND BRIDGES 9
FILLING MATERIALS 9
SUMMARY 10
FURTHER READING 11
Chapter 1.3. Atomic building blocks 12
INTRODUCTION 12
JOINING ATOMS TOGETHER 12
TYPES OF PRIMARY BONDS 13
THE FORMATION OF BULK SOLIDS 14
THE STRUCTURAL ARRANGEMENT OF ATOMS IN SOLIDS 17
SUMMARY 18
Chapter 1.4. Structure of ceramics 20
INTRODUCTION 20
CERAMIC RAW MATERIALS 20
CRYSTALLINE AND AMORPHOUS CERAMICS 20
THE FORMATION OF A GLASS 22
DEVITRIFICATION 24
Chapter 1.5. Structure of metals and alloys 26
MICROSTRUCTURE OF METALS 26
ALLOYS 27
SOLID PHASES 28
PHASE DIAGRAMS 29
NON-EQUILIBRIUM CONDITIONS 31
Chapter 1.6. Structure of polymers 33
INTRODUCTION 33
MECHANISMS OF POLYMERISATION 35
POLYMERIC STRUCTURES 36
COMPOSITION OF REAL POLYMERS 39
FURTHER READING 42
Chapter 1.7. Mechanical properties 43
INTRODUCTION 43
STRESS AND STRAIN 43
MECHANICAL TESTS 46
Chapter 1.8. Physical properties 51
INTRODUCTION 51
RHEOLOGICAL PROPERTIES 51
THERMAL PROPERTIES 54
OPTICAL PROPERTIES 56
Chapter 1.9. Chemical properties 62
INTRODUCTION 62
DEGRADATION OF POLYMERS 62
TARNISH AND CORROSION OF METALS 64
DEGRADATION OF CERAMICS 67
Chapter 1.10. Principles of adhesion 69
INTRODUCTION 69
WHAT IS ADHESION? 69
CRITERIA FOR ADHESION 71
MECHANISMS OF ADHESION 74
THE STRENGTH OF THE ADHESIVE BOND 76
ADHESION PROMOTERS 78
SUMMARY 80
SECTION TWO: CLINICAL DENTAL MATERIALS 81
Chapter 2.1. Dental amalgams 83
INTRODUCTION 83
THE STRUCTURE OF TRADITIONAL DENTAL AMALGAMS 83
PROPERTIES OF TRADITIONAL AMALGAMS 85
HIGH-COPPER-CONTENT DENTAL AMALGAMS 87
SELECTION AND USE OF DENTAL AMALGAMS 88
LIMITATIONS OF DENTAL AMALGAMS 91
IMPROVING THE LONGEVITY OF AMALGAM RESTORATIONS 93
SUMMARY 97
FURTHER READING 97
Chapter 2.2. Resin composites and polyacid-modified resin composites 99
INTRODUCTION 99
COMPOSITION AND STRUCTURE 99
DEVELOPMENTS IN COMPOSITES 102
CLASSIFICATION OF COMPOSITES 111
PROPERTIES 114
MECHANICAL PROPERTIES 118
DENTAL LABORATORY COMPOSITES 120
CLINICAL CONSIDERATIONS FOR THE USE OF COMPOSITE RESTORATIONS 121
POLYACID-MODIFIED RESIN COMPOSITES (COMPOMERS) 123
FURTHER READING 126
Chapter 2.3. Glass–ionomer cements and resin-modified glass–ionomer cements 127
INTRODUCTION 127
CHEMISTRY OF GLASS–IONOMER CEMENTS 127
PROPERTIES 132
CLINICAL APPLICATIONS 135
SILVER CERMETS 140
RESIN-MODIFIED GLASS–IONOMER CEMENTS 140
SUMMARY 142
FURTHER READING 143
Chapter 2.4. Intermediate restorative materials 144
INTRODUCTION 144
PULPAL PROTECTION 144
CAVITY VARNISHES, BASES AND LINERS 145
CHOICE OF INTERMEDIATE RESTORATIVE MATERIALS 148
FURTHER READING 151
Chapter 2.5. Enamel and dentine bonding 152
INTRODUCTION 152
ENAMEL BONDING 152
DENTINE BONDING 156
PRESENTATION OF DENTINE-BONDING AGENTS 163
CONCLUSIONS 170
FURTHER READING 170
Chapter 2.6. Endodontic materials 172
INTRODUCTION 172
VITAL PULP CAPPING 172
ROOT CANAL FILLING MATERIALS 175
ROOT CANAL SEALER CEMENTS 177
CLINICAL ASPECTS OF ROOT CANAL MATERIALS 180
SUMMARY 182
POST AND CORE SYSTEMS 182
SUMMARY 184
FURTHER READING 185
Chapter 2.7. Impression materials 186
INTRODUCTION 186
REQUIREMENTS OF AN IMPRESSION MATERIAL 187
RIGID IMPRESSION MATERIALS 189
ELASTIC IMPRESSION MATERIALS 191
ELASTOMERIC IMPRESSION MATERIALS 196
RELATIVE MERITS OF THE ELASTOMERIC IMPRESSION MATERIALS 199
DISINFECTION OF IMPRESSION MATERIALS 204
FAILURES OF IMPRESSION TAKING 207
FURTHER READING 207
SECTION THREE: LABORATORY AND RELATED DENTAL MATERIALS 209
Chapter 3.1. Gypsum products 211
INTRODUCTION 211
CHEMISTRY OF GYPSUM 211
PROPERTIES 214
SUMMARY 215
FURTHER READING 215
Chapter 3.2. Denture base resins 216
INTRODUCTION 216
COMPOSITION AND STRUCTURE OF ACRYLIC RESIN 216
ASPECTS OF MANIPULATION 218
PROPERTIES 220
SUMMARY 222
DENTURE-LINING MATERIALS 223
FURTHER READING 225
Chapter 3.3. Casting alloys for metallic restorations 227
INTRODUCTION 227
DESIRABLE PROPERTIES 227
NOBLE AND PRECIOUS METAL ALLOYS 228
BASE METAL ALLOYS 233
SUMMARY 235
FURTHER READING 236
Chapter 3.4. Dental ceramics 237
INTRODUCTION 237
HISTORICAL PERSPECTIVE 237
COMPOSITION OF DENTAL PORCELAIN 239
PROCESSING 241
PROPERTIES OF DENTAL PORCELAIN 242
CLASSIFICATION OF MODERN DENTAL CERAMICS 243
FURTHER READING 243
Chapter 3.5. Metal-bonded ceramics 245
INTRODUCTION 245
THE BOND 245
PREPARATION OF THE METAL SURFACE 247
IMPORTANCE OF THERMAL EXPANSION 248
CHOICE OF METAL–CERAMIC ALLOYS 250
SUMMARY 254
FURTHER READING 254
Chapter 3.6. All-ceramic restorations: high-strength core ceramics 256
INTRODUCTION 256
ALUMINA-REINFORCED PORCELAIN JACKET CROWN (PJC) 256
GLASS-INFILTRATED HIGH-STRENGTH CERAMIC CORE SYSTEMS 258
SUMMARY 260
FURTHER READING 260
Chapter 3.7. All-ceramic restorations: resin-bonded ceramics 261
INTRODUCTION 261
CERAMIC VENEERS 261
PROPERTIES 263
GLASS-CERAMICS 263
CLASSIFICATION OF RESIN-BONDED CERAMICS 267
SUMMARY 267
FURTHER READING 268
Chapter 3.8. Luting agents 269
INTRODUCTION 269
GENERAL REQUIREMENTS FOR LUTING AGENTS 269
CHOICE OF LUTING AGENTS 271
WATER-BASED LUTING CEMENTS 272
RESIN-TO-CERAMIC BONDING 279
RESIN-TO-METAL BONDING 283
RESIN-TO-RESIN BONDING 289
FURTHER READING 290
Chapter 3.9. Stainless steel 291
INTRODUCTION 291
IRON 292
STEEL 292
STAINLESS STEEL 294
OTHER ALLOYS 296
SUMMARY 297
FURTHER READING 297
Index 299